[gmx-users] segmentation fault in g_anaeig

Nilu Chakrabarti nilu.chakrabarti at gmail.com
Tue Nov 17 17:53:54 CET 2009

I am used to do PC analysis with g_covar followed by g_anaeig.
But recently, I am getting segmentation fault with g_anaeig.
The g_covar gives eigenval.xvg, eigenvec.trr and average.pdb.

In the next step I use those 3 files to generate -
(1) a projection of each individual vectors on the traj using -proj OR
(2) a set of pdbs for each vector using -extr -nframes options.
In each case I am receiving segmentation fault without any other message
anywhere in a file. So i have no way of figuring out where the problem is.
I am seeing this problem with gmx v 3.3.3  as well as with v 4.0.5.

I will appreciate any help and suggestions. Thanks a bunch.

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